Question for Iron Chef Steve: After the water with the crawfish comes back to a rolling boil, how long do yo favor waiting until you shut it off? I'm boiling some for Easter and I thought I would let if boil for 5 minutes and when I shut it off to dump a bag of ice on them. It's supposed to make the crawfish suck up more seasoning and be spicier and juicier when you suck the heads.